Alarm-gage.



No. 686,6. Patented Nov. l2, l90l. E. FORTIEB.

ALARM GAGE.

(Application filed Jan. 19, 1901.)

(No Model.)

INVENTOR WITNESSES:

ATTO R N EYS.

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UNrTED STATES PATENT OFFICE.

EDMOND FORTIER, OF KANKAKEE, ILLINOIS.

ALARM- GAGE.

SPECIFICATION forming part of Letters Patent No. 686,671, dated November 12, 1901.

Application filed January 19, 1901. $erial1lo. 43,901. (No model.)

To all whom, it may concern.-

Be it known that I, EDMOND FORTIER, a citizen of the United States, residing at 243 Third avenue, in the city of Kankakee, county of Kankakee, and State of Illinois, have invented anew and usefulAlarm-Gage,of which the followingis a specification.

This invention relates to alarm-gages, and is adapted for use on steam or hot-water boilers or on hot-air furnaces and the like, and has for its object the construction of a gage which will at the same time indicate the amount of pressure on the boiler and sound an alarm when the pressure reaches a given point or falls below a given point, and has for its further object the novel construction and combination of parts, as will more fully appear in the specification and claims given below.

Referring to the drawings, in which like parts are indicated by like letters, Figure 1 represents a front elevation of the device with portions broken away, showing the inside mechanism. Fig. 2 represents a portion of the contact-lever and shows the bindingpost.

A represents a curved tube rigidly attached at one end to the end of the feed-tube B and extends around the inside of the casing of the gage. The other end of tube A is closed and pivotally attached to one end of the strip 0. The other end of the strip 0 is pivotally attached by means of a screw to the small end of the toothed segment D, which segment D is pivotally attached at E to the back of the gage. The teeth of the segment D mesh with the pinion F, to which pinion is rigidly attached the pointer G.

In the operation of this gage the admission of liquids, gases, or vapors through the tube B into the expanding tube Atends to lengthen or shorten the distance between point A and point 0, according to the variation of the pressure or temperature, thereby moving the strip 0 and moving the toothed end of the segment D upward or downward,causing the pinion F and the pointer G thereto attached to rotate around the face of the dial, thus indicating the pressure or heat in the gage.

II represents an auxiliary expanding tube rigidly attached at one end to the tube B and extending around the inside of the gage.

The other end of the tube His closed and pivotally attached to the strip I, which strip I at its other end is pivotally and adjustably attached by means of a screw to the middle leg of the lever J. The lever J is pivotally attached at K to the back of the casing of the gage. To the lower end of the lever .I is attached a weight L. The other end of the lever J extends upward and is attached by means of the insulating-strip M to the contact-lever N. Under the upperportion of the contact-lever N. is rigidly attached to the back of the device a binding-post 0, (shown in Fig. 2,) the contact-lever N being held in contact with the binding-post O by means of the screw P.

It represents a curved strip rigidly attached at its center to the binding-post T. The binding-post T is attached to the back of said device. To each end of the strip R are adj ustably attached, by means of a screw, the contact-strips S S. The contact-strips S S are adjustable by means of longitudinal slots encircling the screws. To the bindingposts T and 0, respectively, are attached the ends of the wires for transmitting the electric current to the alarm-bell. (Not shown.)

In operation the admission of liquids,gases, or vapors through the tube B into the expanding tube H lengthens or shortens the distance between points-II and 1', according to the variation of pressure or temperature, causing it to operate the lever J on the pivot K and causing the lever N to come in contact with the ends of one of the strips S, thereby completing the electric circuit and causing the alarm-bell to sound.

It is evident that slight changes may be made in the form and arrangement of the several parts described without departing from the spirit and scope of my invention, and hence I do not wish to be limited to the exact construction herein set forth; but,

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. An alarm-gage comprising a casing, an expansible tube mounted therein, a lever having a weight adj ustably mounted thereon pivoted in the casing, a short link connected to said tube, a vertically-disposed lever connected to the upper end of said first-mentioned lever and adapted to have a swinging movement, a strip of insulation connected to and projecting from the end of said last-mentioned lever, a double-ended contact connected to the free end of said strip, a segmental arm secured in the upper part of the casing above the contact, a pair of contact-arms adjustably secured to said ends of said segmental arm, and an alarm-circuit connected respectively to the center of the double-ended contact and the segmental arm.

2. An alarm-gage, comprising a casing, an

' expansible tube mounted therein, alever carrying an adjustable weight f ulcru med in the casing and connected to said tube, a pivoted lever connected to said first-mentioned lever, an insulating-strip carried by said last-mentioned lever,a double-ended or T-shaped contact carried by said strip, a curved arm, and a pair of adjustable contacts carried by said curved arm one of each near its ends, said contacts being adapted to be contacted as the tube expands or contracts and causes the lever carrying the contacts to be oscillated.

In testimony whereof I have signed my name in presence of two Witnesses.

EDMOND FORTIER. Witnesses:

W. H. SAVANY, T. E. CORY, 

